with no place of their own, spending nights on the sofa us of friends. lena is studyingpoliticalscienceatthe university of hamburg. she is not registered, so we cannot fill her at home. >> i live with a friend in a half from, which they are not allowed to sublet. that means i cannot have my name on e-mail or letter box. i can stay here for now, but no one official can no -- know. >> linda has a budget of 350 euros for living expenses, but even the cost of a room is higher than that -- lena has a budget of 350 euros. >> they invited everyone who was interested at the same time. there were 10 or 20 people looking at these flats, and we talked. so it is very difficult to get any kind of impression of the flat itself or get to know the people already living there. >> lena is not a rare case in hamburg. at the beginning of the semester, students services had to provide emergency beds in the sports hall, but students are still reporting long waiting times for housing, and private landlords are taking advantage of the free housing market. >> the landlords are looking for people with a perman